Competition between Hidden Spin and Charge Orderings in Stripe Phase

Details Competition between Hidden Spin and Charge Orderings in Stripe Phase Competition between Hidden Spin and Charge Orderings in Stripe Phase

2004-12-10

arxiv.org/abs/cond-mat/0412273v2

Phys. Rev. B 71, 140507(R) (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 8 figures. Accepted for publication as a Rapid Communication in Physical Review B

Scientific paper

10.1103/PhysRevB.71.140507

The correlation between charge and spin orderings in hole-doped antiferromagnets is studied within an effective model of quantum strings fluctuating in an antiferromagnetic background. In particular, we perform the direct estimation of the charge and spin long-range-order parameters by means of the quantum Monte Carlo simulation. A hidden spin long-range order is found to be governed by a competition between the two trends caused by increasing hole mobility: the enhancement of the two-dimensional spin-spin correlation mediated by hole motions and the reformation of a strong stripe order.

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